A Brooklyn designer's startup made a sleek electric toothbrush that sold 1 million units. His next surprise will launch in months and could take on SmileDirectClub.
This is a Business Insider Prime story. Click the link below to read it.
- Suresh Raina retires from international cricket, 'joins MS Dhoni in his journey'
- M S Dhoni retires from International cricket, will continue to play IPL
- Arunachal CM launches entrepreneurship plan to boost economy
- Meghalaya has set up task force to revive economy: Sangma
- Google may replace Duo video calling app with Meet